发明申请
US20150124347A1 MAGNETIC HEAD HAVING A SPIN TORQUE OSCILLATOR (STO) WITH A HYBRID HEUSLER FIELD GENERATION LAYER (FGL)
有权
具有混合高频场发生层（FGL）的旋转扭矩振荡器（STO）的磁头
- 专利标题： MAGNETIC HEAD HAVING A SPIN TORQUE OSCILLATOR (STO) WITH A HYBRID HEUSLER FIELD GENERATION LAYER (FGL)
- 专利标题（中）： 具有混合高频场发生层（FGL）的旋转扭矩振荡器（STO）的磁头
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申请号： US14070401申请日： 2013-11-01
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公开(公告)号： US20150124347A1公开(公告)日： 2015-05-07
- 发明人: Masato Shimoto , Keiichi Nagasaka , Masato Matsubara , Yo Sato
- 申请人： HGST Netherlands B.V.
- 申请人地址： NL Amsterdam
- 专利权人： HGST Netherlands B.V.
- 当前专利权人： HGST Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 主分类号： G11B5/35
- IPC分类号： G11B5/35 ; G11B23/00
摘要：
In one embodiment, a magnetic head includes a main pole configured to write data to a magnetic medium, a trailing shield positioned on a trailing side of the main pole, and a STO between the main pole and the trailing shield, wherein the STO includes a laminated structure having a FGL, a spun polarization layer (SPL), and a non-magnetic spacer positioned between the FGL and the SPL, wherein the FGL includes a laminated structure having one or more layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer. In another embodiment, a method is presented for forming such a magnetic head utilizing a FGL that includes a laminated structure baying layers of a CoFe alloy and a Heusler alloy alternately laminated in this order from an end of the FGL closest to the non-magnetic spacer.
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